Very interesting. MUST READ!! Solar stock tank. No need for electric heater.
Chofu wood-fired soaking tub for the backyard cabin. Japanese wood stove about $900 + local stock tank.
how to build a solar powered water heater
What if Board
Solar heated and insulated stock tank
Solar termosiphoning hot tub Heater - perfect for an exterior shower
How to build a pool heater for under $100. It Really Works! On a sunny day, we…
Stock Tank Heater | Brand : Allied Precision | Watts : 1500 W | Cord Length : 6 ft. | Warranty : 1-Year Limited
stock tank hot tub alternative, Island Hot Tub Company/Chofu Heaters - Propane Chofu Heater
Coil Heat Exchanger For wood fired tub with flange
Off Grid Living
stock tanks | ... tank heaters, side mount tank heaters and floating stock tank heaters